package com.gdc.cloud;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;

/**
 * Description: 提供者 支付模块（引入断路器），启动类
 *
 * | @EnableCircuitBreaker                      启用 断路器 功能
 *
 * @author: gdc
 * @date: 2021/2/1
 * @version 1.0
 */
@EnableCircuitBreaker
@EnableEurekaClient
@SpringBootApplication
public class CloudProviderHystrixPayment8001Application {

    public static void main(String[] args) {
        SpringApplication.run(CloudProviderHystrixPayment8001Application.class, args);
    }

    /**
     * 此配置是为了服务监控而配置，与服务器容错本身无关，springcloud升级后的坑
     * ServletRegistrationBean因为springboot的默认路径不是/hystrix.stream
     * 只要在自己的项目里配置上下文的servlet就可以了
     */
    @Bean
    public ServletRegistrationBean getservlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean<HystrixMetricsStreamServlet> registrationBean = new ServletRegistrationBean<>(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }
}
